Roman Catholic

Research Chemical A name often used to refer to grey market psychedelics.

Sanskrit ṛc "verse"

Roanoke College a private college in Salem, Virginia

Reinforced concrete

Royal Commission

remote control typically as in home entertainment devices

Reserve capacity measurement of a Car battery

Star Wars: Republic Commando, a First-person shooter for Xbox and PC

a resistance/capacitance circuit in electronics

radio control typically as in remote control vehicles

the IATA code for Atlantic Airways

Renaissance College Hong Kong

Royal Crown cola

Red Colony, a Mars colonization advocacy group

Rosslyn Connecting Railroad (AAR reporting marks RC)

the reflection coefficient of a circuit

Renaissance College

Rc locomotive

File extension and compiler for Microsoft Windows resource scripts

Racing Club, various football club name

rc, the default Command line interface in Version 10 Unix and Plan 9 from Bell Labs

a filename extension for configuration files in UNIX-like environments, abbreviating "run commands"

a release candidate in software engineering

"Rivest's Cipher", a name given to a number of cryptographic algorithms including RC2, RC4, RC5, and RC6.

Robert College a private high school in Istanbul, Turkey

Robot Chicken a TV show on Adult Swim

Revenue Commissioners, Ireland

Residential College at Mary Foust, a living-learning residence hall at UNCG

Re-evaluation Counseling, a grass-roots organization for personal growth and social change

Resistance Council of Uganda

Refused Classification, in Australia this is a film which must not be sold or hired, i. e. the film is banned

Runs Created, a baseball statistic